<?php
/**
 * Copyright (c) 2009, Microsoft
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Microsoft nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Microsoft ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL Microsoft BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * @category   Microsoft
 * @package    WebErrorPHPToolkit
 * @subpackage Error
 * @version    $Id: ErrorUpload.php, v 1.0 2009-10-09 08:00:00Z unknown $
 * @copyright  Copyright (c) 2009, Microsoft (http://www.microsoft.com)
 * @author     jeff00seattle
 *
 * This is the main PHP body, which is very simple script just gets the request URI
 * from the server variables, this will be the address of the page (relative to
 * the root of your site) that was requested, since this request has caused a
 * 404 error this could either be a page you have moved or a page that never existed.
 */

require_once 'library/Exception.php';
require_once 'library/SearchConstants.php';
require_once 'library/SupportFunctions.php';
require_once 'library/SessionMessages.php';
require_once 'library/SiteVariables.php';
require_once 'library/GetSearchKeys.php';
require_once 'library/WebConfigCache.php';
require_once 'library/BingSearchAssets.php';

/*=====================================================*/

/**
 *
 * Generates custom 404 using Bing API to fill in search results that
 * are most relivate to request URI.
 * 
 * @return boolean
 */
function web_error_generate_bing_search_terms()
{
  /*
  * The URI which was given in order to access this page; for instance, '/index.html'.
  */
  $requestUriStr = site_variable_get('Custom404TestEnabled', false)
                   ? site_variable_get('Custom404TestUrlPath', '')
                   : getenv("REQUEST_URI");

  /*
  * Enter site domain.
  */
  if (!web_error_get_bing_site_domains())
  {
    throw new WebToolkit_Error_Exception('Failed to append domains to search keys from requested URI.');
  }

  /*
  * Get search keys from requested URI.
  */
  if (!web_error_get_bing_search_keys($requestUriStr))
  {
    throw new WebToolkit_Error_Exception(sprintf('Failed to get keys from provided REQUEST_URI "%s".', string_check_plain($requestUriStr)));
  }

  return true;
}

/**
 * Begin 404 Custom 404 Page
 * 
 * @return void
 */
function web_error_upload()
{
  try
  {
    if (!web_error_web_config_cache())
    {
      throw new WebToolkit_Error_Exception('Failed to load web configuration.');
    }
    else if (!web_error_load_hidden_values())
    {
      throw new WebToolkit_Error_Exception('Failed to load hidden values.');
    }
    else if (!web_error_generate_bing_search_terms())
    {
      throw new WebToolkit_Error_Exception('Failed to load Bing search results.');
    }
  }
  catch (Exception $ex)
  {
  	session_set_message($ex->getMessage(), "error", false);
  }
}

?>